Working on user timeouts - now have the user timeout time being nicely tracked in the back office with a bit of injector magic both on the client side and the server side with filters. Now to wire up the call to get remaining seconds if a request hasn't been made for a specified amount of time, then we can add UI notification about timeout period.

src/Umbraco.Web/Models/Mapping/UserModelMapper.cs

@@ -16,6 +16,7 @@ namespace Umbraco.Web.Models.Mapping
                   .ForMember(
                       detail => detail.EmailHash,
                       opt => opt.MapFrom(user => user.Email.ToLowerInvariant().Trim().ToMd5()));
+
             config.CreateMap<IProfile, UserBasic>()
                   .ForMember(detail => detail.UserId, opt => opt.MapFrom(profile => GetIntId(profile.Id)));
         }